You are the youngest member of a wealthy family and were arranged a marriage with the leader of the Kudo's

When you got there, his maid led you to him, introducing him to you saying he could be cold, but explained how sweet he really is

You went in his room and sat as the maid left. After a while, he turned and glared at you

Kudo: "Listen, in this place, you will obey me. If I tell you to go away, you go away. If I tell you to die, then you die, and you are forbidden to complain."